Cutting-machine.



' No. 693,404.. Patented Feb. la, |902. s. u. KmBALL.

' CUTTING MACHINE.

(Lyplicltion MMLDec. 31, 1900.)

(No Model.)

Nll-llllll THE Nonms wzrsns co. PHoTaLlTHQ.. WASHINGTON. :Lcv

'Y UNITED' STATES PATENT OFFICE.

EDWARD IL KIMBALL, OF GLENCOE, ILLINOIS.

CUTTING-MACHINE.

' SPECIFICATION forming part of Letters Patent No. 693,404, dated February 18,1902.

Application filed December 371, 1900. Serial No. l11,697. (No model.)

To all whom t may concern:

Beit known that I, EDWARD H. KIMBALL, a citizen of the United States,residing at Glencoe, in the county of Cook and State of VIllinois, have invented certain new and useful Improvements in Cutting-Machines, of which `the followingis a specification.

My invention relates more particularly to improvements in machines used for cutting paper in which a vertically o r diagonally ree ciprocating knife is suspended in a frame; and the object of my invention is to provide such a cutting-machine which Vshall be' simple, compact, and strong.

By my invention I am. enabled to provide in small compass an'inexpensive and yet powerful machine which may be readily operated, easily kept in order, and quickly and cheaply repaired. n 4 Y A machine embodying my invention can be constructed so as to be readily portable and, occupying small space, may be attached'to-a counter or similar convenient place in a store and so provide a practical and efficient machine forcutting or trimming the pages of periodicals and the like,either irr quantities or from time to time as the same are sold over the counter. These and such other objects as may hereinafter appear are attained by the device illustratedin the accom panyin g'drawings, in which* 1 Fignrel represents a side elevation, partly in section, of an apparatus embodying my invention in its preferred'form. Fig. 2 representsavertical section on the line 2 2.of Fig. 1 looking in the direction indicated by the arrows. Fig. 3 represents a horizontal section on the line 3 3 of Fig. l, and Fig. ,4; represents a horizontal section on the line 4 4L of Fig. r1.

vSimilar letters of reference indicate the same .partsin the several figures of the drawlngs. y

Referring by letter to the accompanying drawings, A represents a base of any suitable form, preferably provided with the channel a for the cutting-block X.

Bis the frame of the cutter, of any suitable I form and dimensions, but shown in the drawings as cast with a U-shaped cross-section. The frame B is adjustably mounted upon the lugs C, which are cast upon the base A, by means of the slots c and the headed studs b,

which pass through the slots c and are screwed vintoV the sides of the frame.

D is a knife suspended from the frame B by the toggles E F and G H, each of said toggles consisting of two links which are pivoted together at their adjacent ends, the upper ends of the links E G of the toggles being pivl otally secured withinV the frame B and the knife being separably pivoted to the lower vends of the toggle-links F H. The toggles E F and Gt H are connected together by the link I, and the link I and toggle G H are pivotally connected, by means of thelink J, with the short arm k of the lever K, which lever is pivotally secured to one of the uprights of i the frame B. The knife is also pivotally secured to the frame by the additional link L.

It will be noted that the sides of theianges of the frame Brnear their lower ends are thick- Y cned, so asto narrow the space between them to approximately the thickness of the knife. The .purpose of this, as clearly shown in-Figs. 2 and 4, is to provide guides at each end of the frame forthe knife D.

The operation of my device is as follows; The lever K being swungforwardto the po,-

sition shownin'dotted lines in Fig. 1 tends i' to force the link J .backward in a horizontal plane.

This in turn, by reason of the pivf otal attachmentof the link J to the knucklepivot of the toggle G H and the pivotal connectionby means of the link I between the p v knuckles of the toggles G H and E F, tends to force the knuckles of the toggles backward and upwardin the arc ,of a circle, thereby lessening the distance betweenthe points of f 9c Y y ing action by the knife, -I provide'vthissupplemental link L, whereby when thek lnovev ment of the'toggles tends to lift the knife vertically the link L is swung thereby back- IOO wardand upward in the arc of a circle, forcing the knife to travel in substantially adi;l agonal path upward and backward.. Infthis movement and the reverse movement the location of the link L is advantageous, this for the reason that weight of the knife is borne by the toggles and not by the link, the latter serving merely to regulate the direction of movement of the knife. There is therefore no requirement of a heavy casting, such as is required where the knife is supported by a link, serving to cause a shearing movement. Furthermore, there is but a single link required, thus insuring that the knife will move with a shear cut-and yet retain a true horizontal position during such movement, the toggles necessarily moving in unison. The knife having been so elevated, the parts will all be brought to the positions shown in dotted lines in Fig. l. Thereupon the periodicals or other matter which it is designed to cut having been suitably secured in position upon the cutting-box X, preferably by a supplemental press, which may be attached to the back of my cutter, but which is not shown in the drawings, the lever K is swung backward and downward, thereby allowing the operator to apply his weight and strength to the best advantage, the link J is pulled forward by the short arm k of the lever K, and by means of the pivotal connections above noted tends to forcibly pull the knuckles of the toggles E F and G H into a straightened position, thereby forcing the knife downward against the matter to be cut. At the same time the link L causes the knife-blade in its downward travel to swing forward, the combined action of the toggles and the link L resulting in a simultaneously forward and downward movement of the knife, whereby a shearing eut is produced.

It will be obvious that by my combination of the lever K with the toggles and the link L, I have produced within small compass and of simple construction a powerful paper cutter or trimmer, which can be practically n operated by hand-power.

, ive means of embodying my invention, it is apparent that the knife is capable of being suspended by a single toggle, the use of a pair of toggles only serving to steady the knife and to distribute the strains incident tothe operation of my device. It is also apparent that with a longer or heavier knife the knife may be suspended from as many toggles as may be deemed expedient under the particular circumstances of each case.

While I have shown the frame adjustabl'y attached to the base, so that the frame may be lowered from time to time to compensate for the wear of the knife because of :repeated sharpenings, it is obvious that such adjustable feature is not essential to the spirit of my invention, and even when it is desired it may be provided in other well-known wayssuch, for instance, as by means of slots in the knife where it is attached to the toggles.

It is also obvious that various modifications in the form and' dimensions of the various parts may be made without departing from the spirit of my invention.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

l. In a cutting-machine, the combination of a base, a frame mounted thereon, a knife suspended from said frame by a pair of toggles, a link connecting the knuckles of said pair of toggles, an operating-lever pivoted to said frame and adapted to articulate said toggles, and means for moving said knife in a direction to give a shear cut, substantially as described.

2. In a cutting-machine, the combination of a base, a frame mounted thereon, a knife suspended from said frame by a toggle-joint, a link pivotally attached to said frame and also pivotally attached to said knife, and means mounted upon said frame for articulating said toggle, whereby said knife will have a movement to give a shear cut, substantially as described.

3. In a cutting-machine, the combination of a base, a frame mounted thereon, a knife suspended from said frame by a pair of toggles, a link connecting the knuckles of said pair of toggles, a supplemental link pivotally attached to said frame and also pivotally at* tached to said knife, and an operating-lever pivoted to said frame and adapted to articulate said toggles, whereby said knife will have a movement to give a shear cut, substantially as described.

4. In a cutting-machine,- the combination of a base, a frame mounted thereon, a knife suspended from said frame by a pair of toggles, a link connecting the knuckles of said pair of toggles, a supplemental link pivotally attached to said frame and also pivotallyat tached to said knife, an operating-lever pivoted to said frame and connected by a link with the knuckle of one of said toggles, whereby said knife will have a movement to give a shear cut, substantially as described.

5. In a cutting-machine, the combination of a base, a frame ad justably mounted thereon, a pair of toggles pivoted at their upper ends to said frame, a knife pivotally attached to the lower ends of said toggles, a link connecting the elbows of said pair of toggles, an operating-lever adapted to articulate said toggles, and a supplemental link having pivotal connection with said frame and with said knife, whereby said knife will have a movement to give a shear cut, substantially as described.

6. In a cutting-machine, the combination of a base, a frame mounted thereon, a knife suspended from said frame by a plurality of toggles, an operative connection between the elbows of said toggles,` means mounted upon said frame for articulating said toggles, means for moving said knife in a direction to give a roo IIO

from said frame by a plurality of toggles, ank

operative connection between the elbows of said toggles, means mounted upon said frame for articulating said toggles, means for moving said knife in a direction to give a shear cut, and vertical guides for said knife within said frame, substantially as described.

8. i In a cutting-machine, the combinationl with a frame; a knife suspended from said frame by ay pair of toggles; and an operatinglever and connections for articulating1 said toggles, whereby said knife will be given a vertical movement; of means connected to said frame and to a single point on 'saidknife p for controlling` the path of movement of the knife.

9. In a cutting-machine, thecombination with a frame; a knife suspended from said, frame by a pair of toggles; and an operatinglever and connections for articulating said toggles; `of a `link pivoted to said frame in juxtapositionto the pivot-point of said lever and having its opposite end' pivotally connected to the knife coincident with the pivotpoint of the near member of the toggle, whereby said knife will be given a shear movement under the action of the lever.

EDWRD H. KIMBALL.

Witnesses:

M. E. SHIELDS, E. Y. GRIDLEY. 

